概念
OSHI是Java的免費基于JNA的(本機)操作系統和硬件信息庫。它不需要安裝任何其他本機庫,并且旨在提供一種跨平臺的實現來檢索系統信息,例如操作系統版本,進程,內存和CPU使用率,磁盤和分區,設備,傳感器等。
使用OSHI我們可以對應用程序進行監控,可以對應用程序所在的服務器資源進行監控,可以監控到很多的指標,如下:
1、計算機系統和固件,底板
2、操作系統和版本/內部版本
3、物理(核心)和邏輯(超線程)CPU,處理器組,NUMA節點
4、系統和每個處理器的負載百分比和滴答計數器
5、CPU正常運行時間,進程和線程
6、進程正常運行時間,CPU,內存使用率,用戶/組,命令行
7、已使用/可用的物理和虛擬內存
8、掛載的文件系統(類型,可用空間和總空間)
9、磁盤驅動器(型號,序列號,大小)和分區
10、網絡接口(IP,帶寬輸入/輸出)
11、電池狀態(電量百分比,剩余時間,電量使用情況統計信息)
12、連接的顯示器(帶有EDID信息)
13、USB設備
14、傳感器(溫度,風扇速度,電壓)
項目結構
使用
pom.xml
<!-- 獲取系統信息 --><dependency><groupId>com.github.oshi</groupId><artifactId>oshi-core</artifactId><version>3.9.1</version></dependency><!-- 項目中用到了 --><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.8.5</version></dependency>
domain依次導入實體
package com.wcbtest.oshi.domain;import cn.hutool.core.util.NumberUtil;
import io.swagger.annotations.ApiModel;
import lombok.Data;import java.io.Serializable;@ApiModel(value="CPU信息")
@Data
public class Cpu implements Serializable {private static final long serialVersionUID = 1L;/*** 核心數*/private int cpuNum;/*** CPU總的使用率*/private double total;/*** CPU系統使用率*/private double sys;/*** CPU用戶使用率*/private double used;/*** CPU當前等待率*/private double wait;/*** CPU當前空閑率*/private double free;public double getTotal() {return NumberUtil.round(NumberUtil.mul(total, 100), 2).doubleValue();}public double getSys() {return NumberUtil.round(NumberUtil.mul(sys / total, 100), 2).doubleValue();}public double getUsed() {return NumberUtil.round(NumberUtil.mul(used / total, 100), 2).doubleValue();}public double getWait() {return NumberUtil.round(NumberUtil.mul(wait / total, 100), 2).doubleValue();}public double getFree() {return NumberUtil.round(NumberUtil.mul(free / total, 100), 2).doubleValue();}
}package com.wcbtest.oshi.domain;import cn.hutool.core.date.DateUnit;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.NumberUtil;
import io.swagger.annotations.ApiModel;
import lombok.Data;import java.io.Serializable;
import java.lang.management.ManagementFactory;
import java.util.Date;@ApiModel(value="Jvm信息")
@Data
public class Jvm implements Serializable {private static final long serialVersionUID = 1L;/*** 當前JVM占用的內存總數(M)*/private double total;/*** JVM最大可用內存總數(M)*/private double max;/*** JVM空閑內存(M)*/private double free;/*** JDK版本*/private String version;/*** JDK路徑*/private String home;public double getTotal() {return NumberUtil.div(total, (1024 * 1024), 2);}public double getMax() {return NumberUtil.div(max, (1024 * 1024), 2);}public double getFree() {return NumberUtil.div(free, (1024 * 1024), 2);}public double getUsed() {return NumberUtil.div(total - free, (1024 * 1024), 2);}public String getVersion() {return version;}public String getHome() {return home;}public double getUsage() {return NumberUtil.mul(NumberUtil.div(total - free, total, 4), 100);}/*** 獲取JDK名稱*/public String getName() {return ManagementFactory.getRuntimeMXBean().getVmName();}/*** JDK啟動時間*/public String getStartTime() {long time = ManagementFactory.getRuntimeMXBean().getStartTime();Date date = new Date(time);return DateUtil.formatDateTime(date);}/*** JDK運行時間*/public String getRunTime() {long time = ManagementFactory.getRuntimeMXBean().getStartTime();Date date = new Date(time);//運行多少分鐘long runMS = DateUtil.between(date, new Date(), DateUnit.MS);long nd = 1000 * 24 * 60 * 60;long nh = 1000 * 60 * 60;long nm = 1000 * 60;long day = runMS / nd;long hour = runMS % nd / nh;long min = runMS % nd % nh / nm;return day + "天" + hour + "小時" + min + "分鐘";}
}package com.wcbtest.oshi.domain;import cn.hutool.core.util.NumberUtil;
import io.swagger.annotations.ApiModel;
import lombok.Data;import java.io.Serializable;@ApiModel(value="內存信息")
@Data
public class Mem implements Serializable {private static final long serialVersionUID = 1L;/*** 內存總量*/private double total;/*** 已用內存*/private double used;/*** 剩余內存*/private double free;public double getTotal() {return NumberUtil.div(total, (1024 * 1024 * 1024), 2);}public double getUsed() {return NumberUtil.div(used, (1024 * 1024 * 1024), 2);}public double getFree() {return NumberUtil.div(free, (1024 * 1024 * 1024), 2);}public double getUsage() {return NumberUtil.mul(NumberUtil.div(used, total, 4), 100);}
}package com.wcbtest.oshi.domain;import io.swagger.annotations.ApiModel;
import lombok.Data;import java.io.Serializable;@ApiModel(value="服務器相關信息")
@Data
public class Sys implements Serializable {private static final long serialVersionUID = 1L;/*** 服務器名稱*/private String computerName;/*** 服務器Ip*/private String computerIp;/*** 項目路徑*/private String userDir;/*** 操作系統*/private String osName;/*** 系統架構*/private String osArch;
}package com.wcbtest.oshi.domain;import io.swagger.annotations.ApiModel;
import lombok.Data;import java.io.Serializable;
@ApiModel(value="磁盤相關信息")
@Data
public class SysFile implements Serializable {private static final long serialVersionUID = 1L;/*** 盤符路徑*/private String dirName;/*** 盤符類型*/private String sysTypeName;/*** 文件類型*/private String typeName;/*** 總大小*/private String total;/*** 剩余大小*/private String free;/*** 已經使用量*/private String used;/*** 資源的使用率*/private double usage;
}package com.wcbtest.oshi.domain;import cn.hutool.core.net.NetUtil;
import cn.hutool.core.util.NumberUtil;
import cn.hutool.system.HostInfo;
import cn.hutool.system.SystemUtil;
import io.swagger.annotations.ApiModel;
import lombok.Data;
import oshi.SystemInfo;
import oshi.hardware.CentralProcessor;
import oshi.hardware.CentralProcessor.TickType;
import oshi.hardware.GlobalMemory;
import oshi.software.os.FileSystem;
import oshi.software.os.OSFileStore;
import oshi.software.os.OperatingSystem;
import oshi.util.Util;import java.io.Serializable;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;@ApiModel(value = "獲取系統硬件信息(所有信息)")
@Data
public class SystemHardwareInfo implements Serializable {private static final long serialVersionUID = 1L;private static final int OSHI_WAIT_SECOND = 1000;/*** CPU相關信息*/private Cpu cpu = new Cpu();/*** 內存相關信息*/private Mem mem = new Mem();/*** JVM相關信息*/private Jvm jvm = new Jvm();/*** 服務器相關信息*/private Sys sys = new Sys();/*** 磁盤相關信息*/private List<SysFile> sysFiles = new LinkedList<SysFile>();/*** 調用此方法初始化數據** @throws Exception*/public void initData() {String type = null;SystemInfo si = new SystemInfo();setCpuInfo(si.getHardware().getProcessor());setJvmInfo();setMemInfo(si.getHardware().getMemory());setSysInfo();setSysFiles(si.getOperatingSystem());}/*** 設置CPU信息*/private void setCpuInfo(CentralProcessor processor) {// CPU信息long[] prevTicks = processor.getSystemCpuLoadTicks();Util.sleep(OSHI_WAIT_SECOND);long[] ticks = processor.getSystemCpuLoadTicks();long nice = ticks[TickType.NICE.getIndex()] - prevTicks[TickType.NICE.getIndex()];long irq = ticks[TickType.IRQ.getIndex()] - prevTicks[TickType.IRQ.getIndex()];long softirq = ticks[TickType.SOFTIRQ.getIndex()] - prevTicks[TickType.SOFTIRQ.getIndex()];long steal = ticks[TickType.STEAL.getIndex()] - prevTicks[TickType.STEAL.getIndex()];long cSys = ticks[TickType.SYSTEM.getIndex()] - prevTicks[TickType.SYSTEM.getIndex()];long user = ticks[TickType.USER.getIndex()] - prevTicks[TickType.USER.getIndex()];long iowait = ticks[TickType.IOWAIT.getIndex()] - prevTicks[TickType.IOWAIT.getIndex()];long idle = ticks[TickType.IDLE.getIndex()] - prevTicks[TickType.IDLE.getIndex()];long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;cpu.setCpuNum(processor.getLogicalProcessorCount());cpu.setTotal(totalCpu);cpu.setSys(cSys);cpu.setUsed(user);cpu.setWait(iowait);cpu.setFree(idle);}/*** 設置內存信息*/private void setMemInfo(GlobalMemory memory) {mem.setTotal(memory.getTotal());mem.setUsed(memory.getTotal() - memory.getAvailable());mem.setFree(memory.getAvailable());}/*** 設置服務器信息*/private void setSysInfo() {Properties props = System.getProperties();HostInfo hostInfo = SystemUtil.getHostInfo();String name = hostInfo.getName();sys.setComputerName(name);//sys.setComputerName(IpUtil.getHostName());sys.setComputerIp(NetUtil.getLocalhostStr());sys.setOsName(props.getProperty("os.name"));sys.setOsArch(props.getProperty("os.arch"));sys.setUserDir(props.getProperty("user.dir"));}/*** 設置Java虛擬機*/private void setJvmInfo() {Properties props = System.getProperties();jvm.setTotal(Runtime.getRuntime().totalMemory());jvm.setMax(Runtime.getRuntime().maxMemory());jvm.setFree(Runtime.getRuntime().freeMemory());jvm.setVersion(props.getProperty("java.version"));jvm.setHome(props.getProperty("java.home"));}/*** 設置磁盤信息*/private void setSysFiles(OperatingSystem os) {FileSystem fileSystem = os.getFileSystem();OSFileStore[] fsArray = fileSystem.getFileStores();for (OSFileStore fs : fsArray) {long free = fs.getUsableSpace();long total = fs.getTotalSpace();long used = total - free;SysFile sysFile = new SysFile();sysFile.setDirName(fs.getMount());sysFile.setSysTypeName(fs.getType());sysFile.setTypeName(fs.getName());sysFile.setTotal(convertFileSize(total));sysFile.setFree(convertFileSize(free));sysFile.setUsed(convertFileSize(used));sysFile.setUsage(NumberUtil.round(NumberUtil.mul(used, total, 4), 100).doubleValue());//sysFile.setUsage(NumberUtil.round(NumberUtil.mul((float)used/(float)total, 100), 2).doubleValue());sysFiles.add(sysFile);}}/*** 字節轉換** @param size 字節大小* @return 轉換后值*/public String convertFileSize(long size) {long kb = 1024;long mb = kb * 1024;long gb = mb * 1024;if (size >= gb) {return String.format("%.1f GB", (float) size / gb);} else if (size >= mb) {float f = (float) size / mb;return String.format(f > 100 ? "%.0f MB" : "%.1f MB", f);} else if (size >= kb) {float f = (float) size / kb;return String.format(f > 100 ? "%.0f KB" : "%.1f KB", f);} else {return String.format("%d B", size);}}
}
controller測試
package com.wcbtest.oshi.controller;import com.wcbtest.oshi.domain.SystemHardwareInfo;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
@Api(tags = "硬件信息基礎接口")
@RequestMapping("/oshi")
public class OshiController {@ApiOperation(value = "獲取硬件信息信息")@GetMapping("/sysInfo")public Object all() {SystemHardwareInfo systemHardwareInfo = new SystemHardwareInfo();systemHardwareInfo.initData();return systemHardwareInfo;}}